The tubing, as any other exercise device, provides different resistance. (martamontenegro.com)
PushX3 is a highly versatile pushup handle exercise device that focuses on strengthening the upper body & core muscles using eccentric and stability forces. (hundredpushups.com)
In addition to assisting movement, the exoskeleton can also inhibit it, creating the potential for using it as a resistance exercise device for astronauts on long missions. (sciencedaily.com)